Almost all beginning investors lose money. I did for ten to twenty years. If you still wish to invest, start an account with Fidelity or Vanguard. They will give you free good advice.
Berkshire Hathaway's holdings would be a good reference: http://en.wikipedia.org/wiki/List_of_assets_owned_by_Berkshire_Hathaway
If we knew the answer to that question, we would all be rich. The stock market is not a get rich overnight investment. Get into a dividend reinvestment plan of several S& P500 stocks. Add a fixed amount on a monthly basis. Continue for 20 years. After 20 years everyone will want to know how you accumulated so much wealth. The worst thing you can do is think thst you sre smarter than the market.
Profiting in the stock market is more than just selecting the right stocks. It's having self-control and knowledge of when to enter and exit a position. Anyone here can give you their stock picks - and most of their picks will rise. Some may rise in the short term; others rise in the long term.
Before putting your money into the market, I recommend researching fundamental analysis. Understanding the factors that make a stock undervalued is the first step in successful investing.
參考: 10+ years investment experience; corporate finance/accounting/auditing experience; author of "The Stock Market Outsider: Becoming a Billionaire"